Canada day observation on 17,675 MHz

Apparently this started with Dominion day.

Proclamation requiring celebration of July 1st: on June 20, 1868 a
proclamation issued by the Governor General, Lord Monck, enjoined and
called upon all Her Majesty's loving subjects throughout Canada to join
in the celebration of the Anniversary of the formation of the Dominion
of Canada on the 1st of July, 1868. This proclamation, a copy of which
is attached, was published in the Canada Gazette on Saturday, June 20,
1868.

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Telamon
Ventura, California